[Foster]

Ham radio operator and a boater here: I've been using Power Poles for years and I love them. Spend the money and buy the crimp tool. The crimp puts even mechanical pressure on the wire, and creates wire/crimp areas that are pressure tight. Even mechanical pressure means the crimp will not come off in abnormal use. Pressure tight means no corrosion at that point (Corrosion is bad on a boat).

They come in colors and the right sizes for the job. They give you the ability to do both "correct wire colors" and allow for final decision at the device. Case in point, swerve drives have two motors close to each other. The wires coming to them are black/red indicating power. But the Power poles are Black and Red and Black and Yellow, and they mate to the same colors on the motors. (Drive and steer)

On the boat I have lots of pairs of items. Port side gets black/red starboard side gets black / orange.